East Bay Regional Park District Master Plan Update: 10 a.m. Sept. 22, Big Break Visitor Center at the Delta Big Break Regional Shoreline. The East Bay Regional Park District is updating its Master Plan that guides future expansion of parks, trails and services, defines the vision and mission, and sets priorities for the next decade. The community is welcomed and encouraged to participate with comments and questions. 888-327-2757.

Tuesday, Sept. 25

Antioch City Council: 7 p.m. City Council chamber, 200 H St. 925-779-7009.

Brentwood City Council: 7 p.m. City Council chamber, 150 City Park Way. 925-516-5440.

Oakley City Council: 6:30 p.m. City Council chamber, 3231 Main St. 925-625-7013.